Option variable
intfaclimDefault value: true
If true, maxima will give up factorization of
integers if no factor is found after trial divisions and Pollard's rho
method and factorization will not be complete.
When intfaclim is false (this is the case when the user
calls factor explicitly), complete factorization will be
attempted. intfaclim is set to false when factors are
computed in divisors, divsum and totient.
Internal calls to factor respect the user-specified value of
intfaclim. Setting intfaclim to true may reduce
the time spent factoring large integers.